Flushing mechanism.



I J' 4 m i-munu mounted therein.

PRIGE H. MCNEILL, OF OLYMPIA, WASHINGTON.

FLUSHING ME CHANISM.

Specification of Letters Patent.

Patented Aug. 3, 1909.

Application filed May 9, 1903. Serial No. 431,971.

To all whom it may concern:

Be it known that I, PRIGE H. MONEILL, citizen of the United States, residing at Olympia, in the County of Thurston and State of lWashington, have invented certain new and useful Improvements in Flushing Mechanism, of which the following is a specification.

My invention relates to a fiushing mechenism for fiushing tanks or the like.

One of the objects of my invention is to provide means to keep the valve in full open position until the inflow of water froni the inlet has reached a pre-determined level at which time the valve will close instantly thereby obviating the noise incident to an ordinary fiushing meehanism on account of gradually contracting the orifice or opening in the valve.

Another object of my invention is to provide facilties 'or repairing the flushing mechanism and prevent the water from escaping from the tank.

A further object of my invention is to provide a simple and efticient means of connecting the inlet pipe to the lower eXtremity of the flushng mechanism.

A further object is to construct a compact, simple and efiicient mechanism.

It further consists of the parts and combination of parts hereinafter described and more particularly pointed out in the claims.

In the accompanying drawing Figure 1 represents a side elevation of my device partly in section and Fig. 2 is a top plan View. Fig. 3 is a detail View of a coneshaped nut.

In the drawings reference numeral 1 represents a tank with my flushing device The body portion 2 of my device is preferably made cylindrical in form with an unnular outwardly extending shoulder 3 which is adapted to overlap the orifice made in the tank or the like. The lower extremity t of the body portion is exteriorly screw-threaded and depcnds below the bottom of the tank. The lower portion t ot the body is also provided with an inwardly extending annulzr flange 6 which is beveled to form a valve seat 7. The nut 8 having a Washer 9 made integral therewith is threadably fitted to the lower portion 4 of the .body and is adapted to be forced in contact with the bottom of the tank making an air and water tight joint and securcly and rigidly nttaching the body portion of the flushing mechanism to the tank.

An arin 10 extends :from the body 2 and is provided with a bifurcated end 11. A lever 12 is pivota'lly Secured to the end 11 leaving its free end extending theretrom and passing between the twin arms 13 and let to which a ball 15 is securely attached. An internally screW-threaded sleeve lG having its upper end 17 slotted to fit the lever 12 is pivotally connected thereto by the bolt 18. The sleeve 16 is sccured to the lever so that it depends directly over the center of the chamber 20. A valve stem 21 having one end exterorly threaded is connected to the sleeve 10 depending through the central portion ot the chanber 20 and below the opening of the valve seat 7.

A shoulder 22 is formed on the depending end of the Valve stem. The valve 24 has an aperture in the center to receive the lower extremity of the Valve stem which is eX- teriorly screw-threaded to receive the nut 25. The valve 24 is securely held in place on the ValVe sten through the medium of the nut 25 which forces the upper surface of the Valve to nbut against the shoulder 22 when the nut is tightened.

In Fig. l the valve is shown in closed position cutting off the water supply from the inlet pipe 26; The upper end of the valve sten 21 is guided in its movement by the wall 27 which is provided with an aperture through which the valve stem extends and Operates. The ball 15 is made ot such spe cific gravity that when the water is permitted to flow into the tank it will counterbalance its weight or barely fioat.

When the tank is filled with water to the predetermined level and it is desired to operate the fiushing device, the cord 28 is pulled down lifting the ball check valve 29 from its seat 29' thereby permitting the water to escape therefrom for fiushing or other purposes and the lever 12 and the ball 15 gradually move downward thns releasing the valve 24 from its seat and allowing the water to enter the chamber 20 and flow into the tank or other receptacle through the discharge opening 30 until the water has reached the predetermined level in the tank. The water in the supply pipe which eXerts a pressure against the Valve 24 aided by water in the tank which floats 'the hall 15, closes the valve when the pre-deternined level is reached. The ValVe renains closed until the ball check Valve 29 is again opened as described and the flushing operation is repeated. XVhen a high pressure is i'naintained in the supply pipe, I prefer to use a cone shaped nut (a) to relieve the pressure against the valye 24..

The above describes the main flushing mechanisn. In order tooverconie the' dis*- advantages common in fiushing devices constructed upon the principle herein described and shown, I have evolved and in- Vented an auxiliary mechani sm which can be used in conjunction With the nechanism heretoio -re described The twin arms 13 and& 14:' are spaced apart and: a bell crank lever 32' is pivotally journa-led therebetween and supported by the bolt A ball 34 is Secured to one end and its specific gravity Varied more or less by an y foreign substance preferably solder which can be placed in the cavity 35. and which also acts as a butter When the ball drops down and rests upon the upper eX- tremityof the arm 10 leaving the enlarg ed en d 36 of' the lever inproper position to engage the lug 37. The free end of the bell crank lever 32 is provided With an enlarged end 36' which is adapted to: contact with the to p of a lug 37 on the lever 12 When the tank i s being filled and rests against the edge thereof When the' valve 24 is closed as Will be described hereinafter.

The operation of my' flushing device is as f'ollows: When the cord 28 is pnlled down i lifting the ball check Valve 29 f'ron its seat,

the' Water floWs out through the opening and the ball15 carrying the ValVe niechanism gradual'ly moves downward correspondi'ng to the level o -if. the Wateruntil it reaches the poi-nt 38' shown by the dottedlinesin Fig; I When the ValVe 24 Will be in full open position and the Water' from the supply pipe 26 Will flowinto the tank or other receptacle through the discharge ori fice 30. i

The bellcranl' lever 32 is balanced so that When the Valve is in full open position the enlarged end' 36 i sdirectly over and in con tact With the upper surface of the lug 37 keeping it from risi-ng to close the ValVe open-ing until? the 'Water in the t-ank reac'hes the level of the ball 34% and forces the lever 32 to oscillate to the position shown by the full' linos 41 when the lever Will be released and the ball 15 and the Val-:Ve and its con- :Iiecti n-g' in-echani sm willrnove 'Upward instantl-y' and close the ValVe.

nechanisn I have forned the end of the supply pipe With an outWardly extending i annular fiange 4:2 which is adapted to abut p against the' lower eXt-reinity of the portion 4 E of the body of the fiushing mechanisn. A

nut 43 having an annular recess 44 is provided and fitted to the outer periphery of the supply pipe 26 and threadably connected to the portion %E of the body leaving' the flange 42 fitted to the recess. hen the nut is tightened the fiange 42 is forced in close contact with the lower surface o l the lower portion t of the body making a. Water tight joint.,

Having fully described myinvention, What I claim and desire to secure by Letters Patent is 1. In a fiushing device comprsing a body portion With a Valve seat formed on its lower extremity, an arm for ned on said body portion a lever pivotally journaled to said arm, a ValVe stern pivotally Secured 'to said lever, a valve secured to said Valve stema, twin arms provided on said body portion, a bell crank. lever pivotally journaled between said tWin arms, a lug secured to the first' mentioned lever, and adapted to contact With the enlarged end of the bell crank lever as and for the purpose described.

2'., In a flushing deVice a holow body adapted tobe secured to. the bottom of a 'tank a valve seat formed in the lower end of said body, an armsecured to said body, a lever pivoted to said arni and extending horizontally over said body, a ball or float Secured to said lever, a steni pivoted to said lever and projecting doWnWard into said body, a val-Ve secured to said stem and adapted to contact With said valve seat twin arms projecting upward from said body, a bell crank pivotally inounted between said arms, a ball or fioat Secured to one end and the other end being enlarged to engage With 'a lug' made integral with i the horizontal lever.

In a' flushing deVice, a tank, a hollow body Secured in said tanl( and provided with a dtscharge aperture, a horizontal lever pivoted to a member of said body, a float seeured to said horizontal lever, a Valve stem pivotedj to said lever and extending through said' body', a va lve Secured to said sten and adapted to -contact With a seat forned in said body a bell crank pivotally secured to members of said body one end of said bell crank adapted to engage With a lug` on the said horizontal lever, 'a fioat secured to the opposite end of said bell crank.

4. In a flushing device and tank, the combin-ation of a body. portion having two-up Wardly extendingarms, leVers pivotally mounted on the free ends thereo f, fioats secured to. the free ends of the levers, said levers being so arranged' as to automatically en gage and di-sengage from each other for the purpose of keeping the inlet Valve in 'ull open position until a predetermined amount of Water has passed into the tank.

5. The conbination of a flushng device and tank, a body portion Secured to said tank having a Valve seat located below the tank and two upwardly extending arms provided on the upper end, leve's pivotally nounted thereon, a valve-sten connected to 33 one of said leve's, a valve Secured thereto and located below the ValVe-seat the said parts being so arranged as to pernt said levers to automatically engage and disengage With each other.

In testimony Whereof I all-fix my signature j 3 in presence of two witnesses.

PRICE H. MCNEILL. VVitnesses GEO. A. MOTTMAN, NELL GALLIPER. 

